Printing-slug-sawing device.



C. L. MOHR.

PRINTING SLUG SAWING DEVICE.

APPLICATION FILED FEB. 4. 191a.

.1 g8L8Q7 Patented Oat. 15, 1918.

2 SHEETSSHEET I.

e5 1 I QM MP CQL- MOHR.

PRINTING SLUG SAWING DEVICE.

APPLICATION FILED FEB. 4. 191a.

Patented Oct. 15, 1918.'

2 SHEETS-SHEET 2.

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with a linotype lated to the path CHARLES L. MOHR, OF CHICAGO, ILLINOIS,

ASSIGNOB. TO MOHR LINO-SAN COMPANY,

OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

PRINTING-SLUG-SAWING DEVICE.

1,281,807. Original application filed March 16, 1914,

To all whom it may concern:

Be it known that I, CHARLES L. M01111, 9. citizen of the United States,and a resident of Chicago, county of Cook, and State of Illinois, haveinvented certain new and useful Improvements in Printing-Slug-SawingDevices, of which thefollowing is a specifi cation.

My invention relates to improvements in attachments for linotypemachines and has especial reference to improvements in means for sawinglinotype slugs or type bars as they are ejected from the machine. I

The subject matter of this application was first disclosed in myco-pending application for Letters Patent of the United States onlinotype machines, Serial No. 825,049, filed March 16, 1914, andthisapplication is in the nature of a division of said co-pendingapplication. i

The objects of my invention are to facilitate the repair and replacementof themtary saw which forms a primary feature in my improved linotypemachine as described and claimed in said co-pending application; toprovide means whereby the saw which is substantially completely incasedwhen operating, may be readily and easily examined and removed eitherfor sharpening or for replacement by another saw.

invention consists in the combination.

machine of a rotary saw reof the linotype slugs as they are e ected, thesaw being mounted upon'one end of a saw arbor and completely incasedwhen in operating condition, and the opposite end of the shaft rotatablymounted in a pivotally mounted bearing so that the saw end of the shaftcan be readily swung out from the machine for inspection and -removal ofthe saw.

.My invention also consists in the several featuresof construction andin the arrangements and combinations of parts by means of which I amenabled to attain the above mentioned and other objects and all ashereinafter described and particularly pointed out in the appendedclaims.

invention will be more readily understood by reference to theaccompanying drawin sforming a part'of this specification an in whichFigure 1 is a fragmentary side elevation partly in section of the frontportion of the Specification 5r Letters Patent.

-5-5 of Fig. 2.

Patented Oct. 15, 1918.

Serial No. 825,049. Divided and this application filed February 4, 1918.Serial No. 215,287.

linotype slug forming part of a linotype machine;

Fig. 2 showing the upper section, V

Fig. 3 is a horizontal section on the line 3-3 of Fig. 2; j

I Fig. 4 is a horizontal section on the line 1-4: of Fig. 2; and

Fig. 5is a fragmentary vertical section of the lower end of the sawarbor on the line supporting bearing in In said drawings 1 representsmold is a side elevation of the saw shaft wheel of a linotype machinepartly broken away to showthe ejector 2. In front of the e ectingposition is arranged the usual slug trimming or sizing mechanism 3 and na substantially closed casing consisting of a lower relatively fixedpart I and an upper removable part 5 secured to and upon the lower partby the cap screws 5"; Within the casing I provide a circular saw 6mounted upon the lower end of the vertical saw shaft or arbor 7. Theshaft'is movable vertically to permit the vertical adjustment of the saw6 relatively to the mold slots for cutting the slugs at various points.For this purpose upper end of shaftfreely slides, and I so mount thesleeve that while it is free to turn with the shaft 7, it is heldagainst vertical movement. The

shaft to be tipped or to be swung about as upon a universal joint tofacilitate the in spection and repair or removal of the saw.

-While the lower" part 4 of the saw casing front of the trimmingmechanism I provide.

' mounting which I provide also permits the.

is movable vertically with the saw it is so mounted upon the frame ofthe linotype machine that it cannot be readily removed, and

it is not necessary to remove it for the inspection, repair or removalof the saw 6.

I provide the shaft 7 with a longitudinal key slot 9, and I provide akey 10 fixed in the slee'ye 8 and fitting the slot 9. By this means theshaft is slidable through the sleeve but they are secured to rotatetogether.

The sleeve extends above and below a bracket 11 fixed upon or carried bythe frame of the linotype machine. Upon the upper end of the sleeveIsecure a fly wheel 12, and upon its lower end a belt pulley 13,

This pulley is adapted to be belted to a driving pulley 14 on a drivingshaft 15, which in turn-is adapted to be driven at relatively high speedby. means not shown.

I provide a bearing ring 16 surrounding the middle portion of the sleeve8 Which ring surfaces of the ring; and I provide an outer. f

fixed ring -20 mounted' in the bracket 11, and having an inner sphericalsurface 21 within which the-ring 18 nicely fits.

normally lies horizontal in the bracket 11,

and between the ring 16 and sleeve 8 1 arrangea circumferential row ofanti-friction bearing balls 17 which permlt the free rotation ofthesleeve 8 within the ring 16.

The sleeve 8 is provided with a fixed ring 18 which lies withinthe ringof balls 17 and This construction mounts the upper end of the saw arborin a bearing through which 1 thesaw shaft can slide longitudinally, by

which it can be rotated and upon which the shaft can be tipped about asupon a universal joint or hearing, as indicated in dotted 5 lines inFigs. 1 and 2.

fitting the pin 23, and I hold the saw tightly against the under side ofthe collar 'I provide the lower end of the shaft 7 with a fixed collar22 and a central longitudinally projecting saw mandrelor pin 23. The sawis provided with a central hole a 22 by means of a center locking screwor bolt 24 which is screwed into a center threaded opening in the lowerend of the pin 23. I provide a washer 25 between the head of. the screwand the end of' the pin, and between the washer and the saw I arrangefirst a large washer 26 contacting with the saw and then the inner ring27 tudinal of the shaft. '55

of a combined circumferential and end thrust hearing which is completedby the outer ring 2-8 and the annular ring of antifriction balls 2%.Each of the rings 27 and 28 is provided with an annular groove toreceive the balls 27 which balls hold the two rings against relativemovement longi- The bearing as a whole is located to the shaft by thebolt 24.

The .outer ring 28' of the bearing is received in an opening 30 which'Iprovide for it in the lower part 4 of the saw casing. Although I providesuch a close fit for the ring 28 in the socket 30 that once the hearinghas been mounted in the lower part 4 of the saw casing it will not befree to rise therein, as a measure of safety, I provide an interiorshoulder 31 on the upper part of the casing surrounding the shaft andadapted to contact, when the casing is closed, with the upper face ofthe collar 22 and prevent't-he relative rising of the shaft.

It will now be clear that any vertical adjustment of the saw casingwillcarry the 3 saw with it, the upper end being freely mov able throughthe upper bearing. 1 1

When the machine is in operation and it becomes necessary to remove the.saw from the casing, and, as often happens, to remove thesaw shaft fromthe machine, it is only necessary to remove the cap screws 5 whichsecure the upper part or cap of the saw casing in place, slide this partup the saw shaft, as shown in dotted lines in Fig. 1, and then lift theshaft 7 vertically to-free the saw and the lower hearing from the lowerpart 4 of the saw casing. I

. Having freedthe saw from the lower part of the casing, the shaft 7 canthen be tipped or swung forward away from the lower part of the casing,the upper spherical bearing mounting permitting this action, and whenthe saw is clear of the casing, as shown in Fig. 1 in dotted lines, thesaw shaft and 'saw can be drawn downwardly out of the bearing. pastthelower part of the. casing and I am thus enabled to entirely removethe saw shaft and saw from the machine.

' The shaft being out it is a simple matter to 'elther repair the saw 6or remove it and substitute another and the remounting of thel'saw readyfor use again can likewise be'easily and quickly accomplished.

By means of my invention I am enabled not only to conserve the time ofthe operator and of the machine itself but the workman is also enabled.easily to keep his product up to a highdegree of accuracy, for the reason that. if it is a diflicult problem to remove or repair the saw theworkman naturally puts ofi the repalr or replacement of same until theproduct reaches its absolute limit I of inaccuracy. I

As many modlfications of my invention will naturally suggest themselvesto one skilled in the art, I do not limit'my invention to the'structuresillustrated except as defined in the appended claims.

I claim: 1., The improvement herein described comprising a saw arbor, asaw mounted within a substantially closedcasing and upon the one end ofsaid saw arbor, a bear ing within said casing upon which the said end ofthe saw arbor is mounted, a bearing for the opposite end of said arbor,through which said arbor can slide endwise, and a universal connectionbetween said second mentioned bearing vand a fixed bracket whereby whenthe saw end of the arbor is free of said casing the arbor can be tippedor inclined as upon a universal joint,

2. In a linotype machine provided with a mold for casting slugs and anejector for forcing the slugs out of the mold, a saw arranged in thepath of the slugs, as they are ejected, for cutting the slugs, an arborupon one end of which the saw is mounted, a bearing carried by themachine for the saw end of the arbor, a bearing carried by the machinefor the opposite or driving end of the arbor, the arbor being movablethrough the said driving end bearing, a spherical joint between saiddriving end bearing and the machine whereby when the saw end of th arboris freed from contact with the ma chine the arbor can be inclined topermit the saw to pass the bearing at the saw end as the arbor is drawnout of the bearing at the driving end.

3. In a, linotype machine having a mold for casting a slug and anejector for forcing the slug out of the mold, a saw mounted in the pathof the slug for cut-ting it in two as it is ejected, an arbor upon oneend of which the saw is secfired, a casing carried upon the machine andwithin which the saw is inclosed,a relatively fixed bearing carried bythe machine for the other end of said arbor, the arbor being movablethrough said fixed bearing, a spherical joint between the inclosing thesaw, an arbor upon one end of which the saw is fixed for rotationtherewith, a bearin within the casing for the saw end of the ar or, abearing carried by the machine for the opposite end of the arbor, asleeve within said bearing and within which the arbor is movablelongitudinally, driving connection between the sleeve and the arbor, abelt pulley on oneend of said sleeve, a universal jolnt connectionbetween the bearing surrounding the sleeve and the machine whereby thearbor can be inclined relatively to the machine when the saw is free ofsaid 1' casing, as and for the purpose specified.

In testimony whereof, I have hereunto set my hand this 2 day ofFebruary, A. D. 1918.

CHARLES L. MOHR.

